Which of the following is a protein that carries oxygen in red blood cells?
a. hemophilia
b. hemoglobin
c. pku
d. antigen

The seed coat's most important function is to provide a) a nonstressful environment for the megasporangium. b) the means for dispersal. c) dormancy. d) a nutrient supply for the embryo. e) desiccation resistance.

How are mutations continually being generated in a population (what are some of the causes of mutatuions? ) explain

What would happen if the tubing with the yellow band was placed in a beaker of distilled water?